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相关概念视频

Long-term Potentiation01:35

Long-term Potentiation

Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Long-term Potentiation01:25

Long-term Potentiation

Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when presynaptic neurons...
Auditory Perception01:17

Auditory Perception

The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the cochlea, a...
Parallel Processing01:20

Parallel Processing

The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...

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相关实验视频

Updated: Jun 19, 2026

Performing Intracochlear Electrocochleography During Cochlear Implantation
09:10

Performing Intracochlear Electrocochleography During Cochlear Implantation

Published on: March 8, 2022

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耳植入后认知处理速度的提高

Isabelle Mosnier1, Joël Belmin2, Domenico Cuda3

  • 1Unité Fonctionnelle Implants Auditifs, ORL, GH Pitié-Salpêtrière, AP-HP Sorbonne Université and Université Paris Cité, Institut Pasteur, AP-HP, Inserm, Fondation Pour l'Audition, Institut de l'Audition, Paris, France.

Frontiers in aging neuroscience
|October 2, 2024
PubMed
概括
此摘要是机器生成的。

耳植入物 (CIs) 在年轻老年人中改善了听力和处理速度,但在听力损失的老年人中,认知灵活性仍然受损. 需要进一步的研究来了解长期的认知影响.

关键词:
耳植入器是什么意思认知 认知 认知下降下降下降下降下降的时间年长的老人老年人老年人.健康的衰老健康的衰老

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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery
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科学领域:

  • 听力学 听力学是指听力学.
  • 神经科学是一个神经科学.
  • 老年学是指老年学的学科.

背景情况:

  • 由于听力处理需求增加,未经治疗的听力损失会影响认知.
  • 助听器可以减轻因听力损失引起的认知资源枯竭.

研究的目的:

  • 评估耳植入物 (CI) 对老年人严重或严重听力损失的认知影响.
  • 为了在不同年龄组之间比较CI植入前和后的认知功能.

主要方法:

  • 100名双边听力损失的受试者 (≥60岁) 接受了CI.
  • 在植入前和植入后 (12个月和18个月) 进行认知测试 (MMSE,TMT-B,DSC,TUG) 和听力问卷.
  • 参与者被分为年轻人 (60-64岁),中年人 (65-75岁) 和老年人 (75岁以上).

主要成果:

  • 在CI后的所有年龄组中,听力显著改善.
  • 没有观察到MMSE,TMT-B或TUG得分的显著变化.
  • 数字符号编码 (DSC) 分数在CI后12个月和18个月的60-64岁年龄组显著改善.

结论:

  • 耳植入可能通过重新分配认知资源来提高年轻老年人的处理速度和注意力.
  • 与正常听力同龄人相比,接受CI的老年人可能仍然在认知灵活性和处理速度方面表现出缺陷.
  • 这项研究提供了有价值的参考数据,用于使用CI的听力障碍患者的认知功能.